<template>
    <a-popover trigger="click" placement="bottom" :autoAdjustOverflow="true" :arrowPointAtCenter="true"
        overlayClassName="header-notice-wrapper" @visibleChange="handleHoverChange"
        :overlayStyle="{ width: '300px', top: '50px' }">
        <template slot="content">
            <a-spin :spinning="loadding">
                <a-tabs>
                    <a-tab-pane :tab="msg1Title" key="1">
                        <a-list>
                            <a-list-item :key="index" v-for="(record, index) in announcement1">
                                <div style="margin-left: 5%; width: 80%">
                                    <p>
                                        <a @click="showAnnouncement(record)">{{ record.msgTitle }}</a>
                                    </p>
                                    <p style="color: rgba(0, 0, 0, 0.45); margin-bottom: 0px">{{ record.createTimeStr }}
                                    </p>
                                </div>
                            </a-list-item>
                            <div style="margin-top: 5px; text-align: center">
                                <a-button @click="toMyAnnouncement()" type="dashed" block>查看更多</a-button>
                            </div>
                        </a-list>
                    </a-tab-pane>
                </a-tabs>
            </a-spin>
        </template>
        <span @click="fetchNotice" class="header-notice">
            <a-badge :count="msgTotal">
                <a-icon style="font-size: 16px; padding: 4px" type="bell" />
            </a-badge>
        </span>
        <show-announcement ref="ShowAnnouncement" @ok="modalFormOk"></show-announcement>
        <dynamic-notice ref="showDynamNotice" :path="openPath" :formData="formData" />
        <msg-list ref="modalList" @close="modalListCancel()"></msg-list>
    </a-popover>
</template>

<script>
import { getAction, postAction } from '@/api/manage'
import ShowAnnouncement from './ShowAnnouncement'
import store from '@/store/'
import DynamicNotice from './DynamicNotice'
import MsgList from '@/views/system/MsgList'

export default {
    name: 'HeaderNotice',
    components: {
        DynamicNotice,
        ShowAnnouncement,
        MsgList,
    },
    data() {
        return {
            loadding: false,
            url: {
                getMsgByStatus: '/msg/getMsgByStatus',
                batchUpdateStatus: '/msg/batchUpdateStatus',
                queryById: '/sys/annountCement/queryById',
            },
            hovered: false,
            announcement1: [],
            msg1Count: '0',
            msg1Title: '通知(0)',
            stopTimer: false,
            websock: null,
            lockReconnect: false,
            heartCheck: null,
            formData: {},
            openPath: '',
        }
    },
    computed: {
        msgTotal() {
            return parseInt(this.msg1Count)
        },
    },
    mounted() {
        this.loadData()
        //this.timerFun();
        this.initWebSocket() //注释by jishenghua  2021年1月13日
        this.heartCheckFun()
    },
    destroyed: function () {
        // 离开页面生命周期函数
        //this.websocketclose();
    },
    methods: {
        timerFun() {
            this.stopTimer = false
            let myTimer = setInterval(() => {
                // 停止定时器
                if (this.stopTimer == true) {
                    clearInterval(myTimer)
                    return
                }
                this.loadData()
            }, 6000)
        },
        loadData() {
            try {
                // 获取系统消息
                getAction(this.url.getMsgByStatus, {
                    status: '1',
                    name: '',
                    timeSwitch: '0',
                    pageSize: 10,
                    currentPage: 1,
                })
                    .then((res) => {
                        if (res && res.code === 200) {
                            this.announcement1 = res.data.rows
                            if (this.announcement1.length > 5) {
                                this.announcement1 = this.announcement1.reverse()
                                this.announcement1 = this.announcement1.slice(0, 5)
                            }
                            this.msg1Count = res.data.rows.length
                            this.msg1Title = '通知(' + res.data.rows.length + ')'
                        }
                    })
                    .catch((error) => {
                        console.log('系统消息通知异常', error) //这行打印permissionName is undefined
                        this.stopTimer = true
                        console.log('清理timer')
                    })
            } catch (err) {
                this.stopTimer = true
                console.log('通知异常', err)
            }
        },
        fetchNotice() {
            if (this.loadding) {
                this.loadding = false
                return
            }
            this.loadding = true
            setTimeout(() => {
                this.loadding = false
            }, 200)
        },
        showAnnouncement(record) {
            postAction(this.url.batchUpdateStatus, { ids: record.id, status: '2' }).then((res) => {
                if (res && res.code === 200) {
                    this.loadData()
                }
            })
            this.hovered = false
            this.$refs.ShowAnnouncement.detail(record)
        },
        toMyAnnouncement() {
            this.$refs.modalList.handleDetail()
        },
        modalFormOk() {},
        modalListCancel() {
            this.loadData()
        },
        handleHoverChange(visible) {
            this.hovered = visible
        },

        initWebSocket: function () {
            // WebSocket与普通的请求所用协议有所不同，ws等同于http，wss等同于https
            var userId = store.getters.userInfo.id
            // var url =
            //   window._CONFIG['domianURL'].replace('https://', 'wss://').replace('http://', 'ws://') +
            //   '/websocket/message/' +
            //   userId
            // var url = 'ws://192.168.5.9:9998/jshERP-boot/websocket/message/' + userId
            var url = 'ws://www.xiaoerjia.top/jshERP/jshERP-boot/websocket/message/' + userId
            this.websock = new WebSocket(url)
            this.websock.onopen = this.websocketOnopen
            this.websock.onerror = this.websocketOnerror
            this.websock.onmessage = this.websocketOnmessage
            this.websock.onclose = this.websocketOnclose
        },
        websocketOnopen: function () {
            console.log('WebSocket连接成功')
            //心跳检测重置
            this.heartCheck.reset().start()
        },
        websocketOnerror: function (e) {
            // console.log(e)
            console.log('WebSocket连接发生错误')
            this.reconnect()
        },
        websocketOnmessage: function (e) {
            if (e.data != 'HeartBeat') {
                this.$notification.open({
                    message: '通知',
                    placement: 'topRight',
                    description: e.data,
                    duration: null,
                })
            }

            // var data = eval('(' + e.data + ')') //解析对象
            // if (data.cmd == 'topic') {
            //   //系统通知
            //   this.loadData()
            // } else if (data.cmd == 'user') {
            //   //用户消息
            //   this.loadData()
            // }
            //心跳检测重置
            this.heartCheck.reset().start()
        },
        websocketOnclose: function (e) {
            // console.log(e)
            // console.log('connection closed (' + e.code + ')')
            this.reconnect()
        },
        websocketSend(text) {
            // 数据发送
            try {
                this.websock.send(text)
            } catch (err) {
                // console.log('send failed (' + err.code + ')')
            }
        },

        openNotification(data) {
            var text = data.msgTxt
            const key = `open${Date.now()}`
            this.$notification.open({
                message: '消息提醒',
                placement: 'bottomRight',
                description: text,
                key,
                btn: (h) => {
                    return h(
                        'a-button',
                        {
                            props: {
                                type: 'primary',
                                size: 'small',
                            },
                            on: {
                                click: () => this.showDetail(key, data),
                            },
                        },
                        '查看详情'
                    )
                },
            })
        },

        reconnect() {
            var that = this
            if (that.lockReconnect) return
            that.lockReconnect = true
            //没连接上会一直重连，设置延迟避免请求过多
            setTimeout(function () {
                console.info('尝试重连...')
                that.initWebSocket()
                that.lockReconnect = false
            }, 5000)
        },
        heartCheckFun() {
            var that = this
            //心跳检测,每20s心跳一次
            that.heartCheck = {
                timeout: 20000,
                timeoutObj: null,
                serverTimeoutObj: null,
                reset: function () {
                    clearTimeout(this.timeoutObj)
                    clearTimeout(this.serverTimeoutObj)
                    return this
                },
                start: function () {
                    var self = this
                    this.timeoutObj = setTimeout(function () {
                        //这里发送一个心跳，后端收到后，返回一个心跳消息，
                        //onmessage拿到返回的心跳就说明连接正常
                        that.websocketSend('HeartBeat')
                        console.info('客户端发送心跳')
                        self.serverTimeoutObj = setTimeout(function () {
                            //如果超过一定时间还没重置，说明后端主动断开了
                            that.websock.close() //如果onclose会执行reconnect，我们执行ws.close()就行了.如果直接执行reconnect 会触发onclose导致重连两次
                        }, self.timeout)
                    }, this.timeout)
                },
            }
        },

        showDetail(key, data) {
            this.$notification.close(key)
            var id = data.msgId
            getAction(this.url.queryById, { id: id }).then((res) => {
                if (res.success) {
                    var record = res.result
                    this.showAnnouncement(record)
                }
            })
        },
    },
}
</script>

<style lang="css">
.header-notice-wrapper {
    top: 50px !important;
}
</style>
<style lang="less" scoped>
.header-notice {
    display: inline-block;
    transition: all 0.3s;

    span {
        vertical-align: initial;
    }
}
</style>